As HTC revealed in its Qtek 8500 FAQ, at least two European operators are expected to release the Qtek 8500 (aka HTC Star Trek/STRTrk) during this Spring as well: Orange NL and Amena in Spain.
According to the FAQ, Amena will provide its own SKU from week four of May while Orange will ship its own SKU from week four of June (more than one months later).
At the moment it's not clear if Orange NL will be the only Orange subsidiary which will take the Star Trek or if other Orange subsidiaries will follow as well. Also it's unknown yet, if Orange will take it as Qtek 8500 or if the operator (who was the first who introduced a Windows Mobile Smartphone) will rebrand it as SPV:

However, as Smartphone-Web reports today, t-Mobile Germany has confirmed that it has no plans to introduce the HTC Star Trek, neither as an SDA nor as the Qtek 8500. So it looks like we cannot expect a Star Trek launch within the T-Mobile group at all, since T-Mobile Germany is the lead operator in terms of product introductions.